My DD's dad (who I admittedly left a long time ago) doesn't pay a satisfactory amount towards my DD's needs per month. He has recently began paying £200 a month (which doesn't reflect the amount he could pay with his income), but my DD has began driving (we alternate with lesson costs, she pays one, I pay the next) but I can't seem to afford everything. After a phone contract and gym membership, I don't feel I have enough. DD does have a job on top of A levels but she has recently asked for a £25 dress for a party and I don't feel that I should have to pay for it when her dad pays bugger all! What do I do?